January 5, 2024
The Canada Border Services Agency (CBSA) electronic commerce systems published on it's website the list of official Holidays for for the year 2024. They apply to all provinces except where indicated otherwise:
The Agency also published the list of scheduled maintenance outages, generally in the early morning, for Electronic Data Interchange (EDI), eManifest Portal and Canadian Export Reporting System (CERS) Portal:
The dates of these outages are based on information available at time of publication and are subject to change. Updated and more detailed information will be communicated by bulletin in advance of the outage.
Additional outages can be expected for the migration of system releases, but exact dates/times have not been determined.
Link: CBSA Scheduled maintenance outages for 2024 and Holiday table for 2024